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dom0: validate downloaded packages names (#198)

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This commit is contained in:
Marek Marczykowski 2011-07-16 01:59:58 +02:00
parent 49257d488b
commit 4607428c38
1 changed files with 4 additions and 1 deletions
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5
dom0/aux-tools/qubes-receive-updates
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@ -20,6 +20,7 @@
#
#
import os
import re
import sys
import subprocess
import shutil
@ -29,6 +30,8 @@ from qubes.qubes import QubesVmCollection
updates_dir = "/var/lib/qubes/updates"
updates_rpm_dir = updates_dir + "/rpm"
package_regex = re.compile(r"^[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789._+-]{1,128}.rpm$")
def dom0updates_fatal(msg):
print >> sys.stderr, msg
shutil.rmtree(updates_rpm_dir)
@ -45,7 +48,7 @@ def handle_dom0updates(updatevm):
subprocess.check_call(["/usr/lib/qubes/qfile-dom0-unpacker", os.getlogin(), updates_rpm_dir])
# Verify received files
for f in os.listdir(updates_rpm_dir):
if glob.fnmatch.fnmatch(f, "*.rpm"):
if package_regex.match(f):
p = subprocess.Popen (["/bin/rpm", "-K", updates_rpm_dir + "/" + f],
stdout=subprocess.PIPE)
output = p.communicate()[0]